borehole heat exchanger

The energy demand for heating is decreasing significantly in modern highly-insulated dwellings. Due to larger glass areas and well insulated buildings overheating becomes a problem. In a research project several hydraulic schemes with ground-coupled heat pumps and passive cooling with borehole heat exchanger have been evaluated. A parametric study with MATLAB/Simulink simulations using a residential low-energy building with floor heating system has been carried out. Simultaneous simulation of building and mechanical system showed dynamic interaction of floor and ground heat exchanger.